The same way you spawn any other goldfish.
No Goldfish do not normally die after they spawn. Goldfish can live and spawn regularly for over 50 Years.
The goldfish and spawn need to be separated immediately spawning has finished otherwise the spawn will be eaten. I used to remove most of the spawn rather than moving the fish.
Usually they spawn in the spring but to encourage it usually slowly raise the temperature
Goldfish spawn in groups in springtime when the water temperature approaches 70F. They do not have live babies.
The female goldfish does develop a chubbier tummy when she has eggs and is ready to spawn. If she does not spawn the eggs are re-absorbed into her body and she gets slimmer again.
Goldfish normally spawn once yearly in Spring time.
They will spawn when conditions are right. There is nothing you can do to stop them other than making them all too sick to spawn.
Keeping the water clean in your goldfish aquarium will not only make your fish more likely to spawn but will also greatly improve the health of your fish and any potential fry, so yes you should keep your goldfish's water clean for them to spawn.
it can be its breeding tubercles... if you have a female... they might spawn!!!!
They spawn in amongst the plant life at the surface of their pond/aquarium etc.
Goldfish can not be pregnant. They lay eggs (spawn) in Springtime when the water temperature starts to warm up towards 70F.